Google APIs are application programming interfaces developed by Google which allow communication with Google Services and their integration to other services.

Mobile

Apple Mobile Tags

Websites Using Apple Mobile Tags

iOS Safari instructions for mobile web apps

Content Management System

WebFlow

Websites Using WebFlow

Responsive web design tool, CMS, and hosting platform

Previously Google Apps for Business. G Suite is a cloud-based productivity suite that helps you and your team connect and get work done from anywhere on any device. It's simple to setup, use and manage, allowing you to work smarter and focus on what really matters.

Document Standard

Content Security Policy

Websites Using Content Security Policy

Content Security Policy is best used as defense-in-depth, to reduce the harm caused by content injection attacks.

HTTPS

Websites Using HTTPS

Websites using https protocol.

HTML5 DocType

Websites Using HTML5 DocType

The DOCTYPE is a required preamble for HTML5 websites.

Fonts

Google Web Fonts

Websites Using Google Web Fonts

Google's hosted library for web fonts. Allows websites to choose and use fonts from a free, wide variety of fonts.

Typekit

Websites Using Typekit

Typekit is the easiest way to use real fonts on the web. It's a subscription-based service for linking to high-quality Open Type fonts from some of the worlds best type foundries.